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Rockwell Automation Publication 750-IN118A-EN-P - May 2021
Chapter 4 Power Wiring
Fuses
Two categories of fuses are used in the configured input bays:
•
Configured input bays with fuse input protection use
•
.
Control Fuses
Input Power Fuses
In a configured input bay with AC line input protection using fuses, three
input power fuses are used, one for each phase. For fuse specifications, see the
following tables. For input power fuse locations, see
Connection Locations on page 64
.
Table 15 - Fuse Schematic Symbols
Frame Fuse
Schematic Symbols in Configured
Input Bay with Fuse Input
Protection
Schematic Symbols in Configured
Input Bay with Control Only or
Circuit Breaker Input Protection
8, 9
Input Power Fuses
FU1, FU2, FU3
—
Voltage Vision Fuses
FU4, FU5, FU6
FU4, FU5, FU6
Control Transformer Primary Fuse
FU7, FU8
FU7, FU8
Control Transformer Secondary Fuse 1
FU9
FU9
Control Transformer Secondary Fuse 2
FU10
FU10
Frame Fuse
Schematic Symbol
Input Voltage (V)
Specification
Quantity
Included in
Configured
Input Bay
Manufacturer
Manufacturer
Part Number
8, 9
Voltage Vision Fuses
FU4, FU5, FU6
400/480/600
Class CC - 600V, 1 A
3
Littelfuse Inc
KLDR001.TXP
690
Class gG - 690V, 1 A
3
Mersen
FR14GG69V1
Control Transformer
Primary Fuse
FU7, FU8
400/480/600
Class CC - 600V, 5 A
2
Littelfuse Inc
KLDR005.TXP
690
Class gG - 690V, 4 A
2
Mersen
FR14GG69V4
Control Transformer
Secondary Fuse 1
FU9
110/120
MIDGET - 250V, 6 A
1
Cooper Bussmann
FNM-6
Control Transformer
Secondary Fuse 2
FU10
110/120
MIDGET - 250V, 7 A
1
Cooper Bussmann
FNM-7